GRADE 1
Titanium & Titanium Alloy Grades
Grade 1
Titanium Grade 1 is one of the commercially pure titanium grades, known for its excellent corrosion resistance, high ductility, and good formability. It is often used in applications where strength is less critical but where corrosion resistance is a primary concern.
Common Grade 1 Products
Titanium Bar
Titanium Sheet
Key characteristics and properties of Titanium Grade 1:
Composition
Titanium Grade 1 is primarily composed of titanium (around 99.5%), with trace amounts of other elements
- Oxygen (O): 0.18% maximum
- Iron (Fe): 0.20% maximum
- Carbon (C): 0.08% maximum
- Nitrogen (N): 0.03% maximum
- Hydrogen (H): 0.015% maximum
Overall, Titanium Grade 1 is a versatile material, highly valued for its corrosion resistance, formability, and biocompatibility, making it a staple in industries ranging from chemical processing to medical devices.
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Key Properties
- Corrosion Resistance: Grade 1 titanium is highly resistant to corrosion in a wide range of environments, including seawater, chlorides, and acidic conditions, making it suitable for marine and chemical processing applications.
- Ductility: It has excellent ductility, which allows it to be easily formed into complex shapes without cracking, making it ideal for applications requiring detailed manufacturing.
- Formability: Grade 1 titanium can be cold-formed, hot-formed, and machined with relative ease, contributing to its versatility in various industries.
- Low Strength: Compared to other grades of titanium, Grade 1 has the lowest strength, but this is often compensated by its exceptional corrosion resistance and ductility.
Applications
- Chemical Processing: Due to its resistance to corrosive environments, it’s commonly used in chemical plants for equipment like heat exchangers, tanks, and piping systems.
- Marine Environments: Its ability to withstand saltwater corrosion makes it ideal for marine applications, such as ship components, seawater cooling systems, and offshore oil and gas equipment.
- Medical Applications: Because it is biocompatible and non-toxic, Titanium Grade 1 is also used in medical devices and implants.
- Aerospace Industry: It’s used for non-critical components where its corrosion resistance and low weight are beneficial.
- Architecture: Occasionally used in architecture for its aesthetic properties and corrosion resistance, particularly in coastal regions.
Mechanical Properties
- Ultimate Tensile Strength: Approximately 240 MPa (34.8 ksi)
- Yield Strength: Around 170 MPa (24.6 ksi)
- Elongation: 24% at break
- Hardness: Rockwell B hardness of around 35
- Melting Point: 1668°C (3034°F)
- Thermal Conductivity: Lower than most metals, which can be beneficial in some heat-sensitive applications.
- Excellent resistance to a wide range of corrosive environments.
- High biocompatibility, making it suitable for medical implants.
- High ductility and formability.
- Lower strength compared to other titanium grades.
- Higher cost compared to some other metals, though justified by its unique properties.
- ASTM B265: Standard specification for titanium and titanium alloy strip, sheet, and plate.
- AMS 4900: Standard specification for Grade 1 titanium sheet and plate.
- ISO 5832-2: Medical applications standard.
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